GB2038356A - Method of Improving Fuel Economy of an Internal Combustion Engine and Composition Therefor - Google Patents
Method of Improving Fuel Economy of an Internal Combustion Engine and Composition Therefor Download PDFInfo
- Publication number
- GB2038356A GB2038356A GB7943462A GB7943462A GB2038356A GB 2038356 A GB2038356 A GB 2038356A GB 7943462 A GB7943462 A GB 7943462A GB 7943462 A GB7943462 A GB 7943462A GB 2038356 A GB2038356 A GB 2038356A
- Authority
- GB
- United Kingdom
- Prior art keywords
- glycerol
- fatty acid
- lubricating oil
- fuel economy
- engine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 26
- 239000000203 mixture Substances 0.000 title claims abstract description 22
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 title claims description 15
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims abstract description 72
- 235000014113 dietary fatty acids Nutrition 0.000 claims abstract description 28
- 239000000194 fatty acid Substances 0.000 claims abstract description 28
- 229930195729 fatty acid Natural products 0.000 claims abstract description 28
- 239000010687 lubricating oil Substances 0.000 claims abstract description 27
- -1 fatty acid ester Chemical class 0.000 claims abstract description 24
- RZRNAYUHWVFMIP-KTKRTIGZSA-N 1-oleoylglycerol Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OCC(O)CO RZRNAYUHWVFMIP-KTKRTIGZSA-N 0.000 claims abstract description 11
- RZRNAYUHWVFMIP-HXUWFJFHSA-N glycerol monolinoleate Natural products CCCCCCCCC=CCCCCCCCC(=O)OC[C@H](O)CO RZRNAYUHWVFMIP-HXUWFJFHSA-N 0.000 claims abstract description 11
- 150000002148 esters Chemical class 0.000 claims description 10
- 239000002253 acid Substances 0.000 claims description 8
- 150000007513 acids Chemical class 0.000 claims description 8
- 239000000654 additive Substances 0.000 claims description 8
- 239000003921 oil Substances 0.000 claims description 8
- 150000004665 fatty acids Chemical class 0.000 claims description 6
- 239000003112 inhibitor Substances 0.000 claims description 6
- 230000001050 lubricating effect Effects 0.000 claims description 6
- 238000005461 lubrication Methods 0.000 claims description 6
- 235000019198 oils Nutrition 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 150000005690 diesters Chemical class 0.000 claims description 4
- 229930014626 natural product Natural products 0.000 claims description 4
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid group Chemical group C(CCCCCCC\C=C/CCCCCCCC)(=O)O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims description 4
- 239000003760 tallow Substances 0.000 claims description 4
- 150000005691 triesters Chemical group 0.000 claims description 4
- DTRGDWOPRCXRET-UHFFFAOYSA-N (9Z,11E,13E)-4-Oxo-9,11,13-octadecatrienoic acid Natural products CCCCC=CC=CC=CCCCCC(=O)CCC(O)=O DTRGDWOPRCXRET-UHFFFAOYSA-N 0.000 claims description 2
- DTRGDWOPRCXRET-SUTYWZMXSA-N (9e,11e,13e)-4-oxooctadeca-9,11,13-trienoic acid Chemical compound CCCC\C=C\C=C\C=C\CCCCC(=O)CCC(O)=O DTRGDWOPRCXRET-SUTYWZMXSA-N 0.000 claims description 2
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 claims description 2
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 claims description 2
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 claims description 2
- 239000004215 Carbon black (E152) Substances 0.000 claims description 2
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims description 2
- 239000005642 Oleic acid Substances 0.000 claims description 2
- 235000019482 Palm oil Nutrition 0.000 claims description 2
- 235000019483 Peanut oil Nutrition 0.000 claims description 2
- 239000003963 antioxidant agent Substances 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- 239000002285 corn oil Substances 0.000 claims description 2
- 235000005687 corn oil Nutrition 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 claims description 2
- 230000007797 corrosion Effects 0.000 claims description 2
- 230000003467 diminishing effect Effects 0.000 claims description 2
- 239000002270 dispersing agent Substances 0.000 claims description 2
- 239000006260 foam Substances 0.000 claims description 2
- 239000002803 fossil fuel Substances 0.000 claims description 2
- 229930195733 hydrocarbon Natural products 0.000 claims description 2
- 150000002430 hydrocarbons Chemical class 0.000 claims description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 2
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims description 2
- 125000000468 ketone group Chemical group 0.000 claims description 2
- 239000002540 palm oil Substances 0.000 claims description 2
- IPCSVZSSVZVIGE-UHFFFAOYSA-N palmitic acid group Chemical group C(CCCCCCCCCCCCCCC)(=O)O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 claims description 2
- 239000000312 peanut oil Substances 0.000 claims description 2
- 229920006395 saturated elastomer Polymers 0.000 claims description 2
- 239000003981 vehicle Substances 0.000 claims description 2
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
- C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
- C10M129/68—Esters
- C10M129/76—Esters containing free hydroxy or carboxyl groups
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/281—Esters of (cyclo)aliphatic monocarboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/282—Esters of (cyclo)aliphatic oolycarboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/283—Esters of polyhydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/286—Esters of polymerised unsaturated acids
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/287—Partial esters
- C10M2207/289—Partial esters containing free hydroxy groups
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/25—Internal-combustion engines
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/25—Internal-combustion engines
- C10N2040/251—Alcohol-fuelled engines
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/25—Internal-combustion engines
- C10N2040/255—Gasoline engines
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/25—Internal-combustion engines
- C10N2040/255—Gasoline engines
- C10N2040/28—Rotary engines
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
- Liquid Carbonaceous Fuels (AREA)
Abstract
The fuel economy of an internal combustion engine is improved by incorporating in the lubricating oil used to lubricate the crankcase of said engine from 0.25 to 2 weight percent of a fatty acid ester of glycerol, such as glycerol monooleate or glycerol tallowate. The fatty acid ester can be added to lubricating oil to form a lubricating oil composition.
Description
SPECIFICATION
Method of Improving Fuel Economy of an
Internal Combustion Engine and Composition
Therefor
This invention relates to a method for improving the fuel economy of an internal combustion engine.
With the crisis associated with diminishing amounts of fossil fuel and the rapidly increasing prices for this fuel, there has been a great deal of interest in improving fuel economy, that is, the number of miles obtained in a given vehicle per liter of fuel.
Some fatty acid esters of glycerol are known in the industrial oil area, for use at low concentrations, some are known to be oiliness agents; however, since piston and ring lubrication is predominantly hydrodynamic, gains in fuel economy through the use of additives in the lubricating oil which reduce the coefficient of friction in mixed lubrication will probably be small and difficult to assess.
It has now been found that if 0.25 to 2 weight of a fatty acid ester of glycerol is added to the lubricating oil used to lubricate the crankcase of an internal combustion engine a measurable improvement in the fuel economy, that is, the miles per liter of fuel, of the engine is observed.
Adding from 0.25 to 2 weight percent, and preferably from 0.40 to 1.25 weight percent of a fatty acid ester to a crankcase lubricating oil significantly improves the fuel economy of the internal combustion engine. Specifically, improvements in fuel milage of from 2 to 3% on the average or more have been observed in engine tests. This fuel economy improvement can be obtained in both compression-ignition engines, that is, diesel engines, and spark-ignition engines, that is, gasoline engines.
Fatty acid esters of glycerol can be prepared by a variety of methods well known in the art. Many of these esters, such as glycerol monooleate and glycerol tallowate, are manufactured of a commercial scale. The esters useful for this invention are oil-soluble and are preferably prepared from C8 to C22 fatty acids or mixtures thereof such as are found in natural products. The fatty acid may be saturated of unsaturated.
Certain compounds found in acids from natural sources may include licanic acid which contains one keto group.
Preferred fatty acids are oleic, stearic, palmitic, myristic, palmitoleic, linoleic, lauric, linolenic, and eleostearic, and the acids from the natural
products tallow, palm oil, peanut oil, corn oil, neat's foot oil and the like.
Particularly preferred acids are oleic acid and the acids from tallow.
When glycerol is esterfied with a fatty acid, mono-, di and triesters form. Commercial glycerol mono-oleate, for example, contains a large amount of dioleate and a minor proportion of trioleate. Mono-, di- and triesters and mixtures thereof are contemplated for use in this invention.
When, for the sake of convenience, the common term such as "glycerol monooleate" is used, the di- and trioleates are to be included within the meaning of glycerol monooleate.
The lubricating oil to which the fatty acid ester of glycerol can be added can be any hydrocarbonbased lubricating oil. The hydrocarbon lubricating oils may be derived from synthetic or natural sources and may be paraffinic, naphthenic or asphaltic base, or mixtures thereof. A variety of additives are ordinarily present in lubricating oils used to lubricate modern internal combustion engines. These additives include antioxidants, dispersants, rust inhibitors, foam inhibitors, corrosion inhibitors, antiwear agents, and a variety of other well-known additives.
Claims
1. A lubricating oil composition comprising an oil of lubricating viscosity and from 0.25 to 2 weight percent of a fatty acid ester of glycerol.
2. A lubricating oil composition as claimed in
Claim 1, containing 0.40 to 1.25 weight percent of the fatty acid ester of glycerol.
3. A lubricating oil composition as claimed in
Claim 1 or 2, wherein said ester is a C8 22 fatty acid ester of glycerol.
4. A lubricating oil composition as claimed in
Claim 3, wherein said ester is glycerol monooleate.
5. A lubricating oil composition as claimed in
Claim 3, wherein said ester is glycerol tallowate.
6. A method of improving the fuel economy of an internal combustion engine, which comprises lubricating the crankcase of said engine with an oil of lubricating viscosity to which has been added from 0.25 to 2 weight percent of a fatty acid ester of glycerol.
7. A method according to Claim 6, wherein the lubrication is effected with a composition as claimed in any one of Claims 1 to 5.
8. A method according to Claim 6 or 7, wherein said engine is a compression-ignition engine.
9. A method according to Claim 6 or 7, wherein said engine is a spark-ignition engine.
**WARNING** end of DESC field may overlap start of CLMS **.
Claims (9)
1. A lubricating oil composition comprising an oil of lubricating viscosity and from 0.25 to 2 weight percent of a fatty acid ester of glycerol.
2. A lubricating oil composition as claimed in
Claim 1, containing 0.40 to 1.25 weight percent of the fatty acid ester of glycerol.
3. A lubricating oil composition as claimed in
Claim 1 or 2, wherein said ester is a C8 22 fatty acid ester of glycerol.
4. A lubricating oil composition as claimed in
Claim 3, wherein said ester is glycerol monooleate.
5. A lubricating oil composition as claimed in
Claim 3, wherein said ester is glycerol tallowate.
6. A method of improving the fuel economy of an internal combustion engine, which comprises lubricating the crankcase of said engine with an oil of lubricating viscosity to which has been added from 0.25 to 2 weight percent of a fatty acid ester of glycerol.
7. A method according to Claim 6, wherein the lubrication is effected with a composition as claimed in any one of Claims 1 to 5.
8. A method according to Claim 6 or 7, wherein said engine is a compression-ignition engine.
9. A method according to Claim 6 or 7, wherein said engine is a spark-ignition engine.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US97069978A | 1978-12-18 | 1978-12-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2038356A true GB2038356A (en) | 1980-07-23 |
| GB2038356B GB2038356B (en) | 1983-05-11 |
Family
ID=25517353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7943462A Expired GB2038356B (en) | 1978-12-18 | 1979-12-18 | Method of improving fuel economy of an internal combustion engine and composition therefor |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS5584394A (en) |
| CA (1) | CA1157846A (en) |
| DE (1) | DE2949910A1 (en) |
| FR (1) | FR2444706B1 (en) |
| GB (1) | GB2038356B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4617026A (en) * | 1983-03-28 | 1986-10-14 | Exxon Research And Engineering Company | Method for improving the fuel economy of an internal combustion engine using fuel having hydroxyl-containing ester additive |
| US4957651A (en) * | 1988-01-15 | 1990-09-18 | The Lubrizol Corporation | Mixtures of partial fatty acid esters of polyhydric alcohols and sulfurized compositions, and use as lubricant additives |
| US5244591A (en) * | 1992-03-23 | 1993-09-14 | Chevron Research And Technology Company | Lubricating oil compositions for internal combustion engines having silver bearing parts |
| EP0573231A1 (en) * | 1992-06-02 | 1993-12-08 | The Lubrizol Corporation | Triglycerides as friction modifiers in engine oil for improved fuel economy |
| EP0787790A3 (en) * | 1996-01-31 | 1998-07-15 | Chevron Chemical Company | Lubricant composition suitable for direct fuel injected, crankcase-scavenged two-stroke cycle engines |
| WO2007001443A3 (en) * | 2004-11-04 | 2007-03-22 | Pratt & Whitney | Lubricant additive packages for improving load-carrying capacity and surface fatigue life |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5776096A (en) * | 1980-10-31 | 1982-05-12 | Idemitsu Kosan Co Ltd | Lubricant oil composition |
| GB2097813B (en) * | 1981-05-06 | 1985-09-25 | Exxon Research Engineering Co | Glycerol esters in lubricating oils as fuel economy additives |
| AU549639B2 (en) * | 1981-07-01 | 1986-02-06 | Chevron Research Company | Lubricating oil composition to improve fuel economy |
| MX162168A (en) * | 1981-09-14 | 1991-04-04 | Lubrizol Corp | IMPROVED LUBRICATING COMPOSITION TO REDUCE FUEL CONSUMPTION |
| US4952328A (en) * | 1988-05-27 | 1990-08-28 | The Lubrizol Corporation | Lubricating oil compositions |
| US4981602A (en) * | 1988-06-13 | 1991-01-01 | The Lubrizol Corporation | Lubricating oil compositions and concentrates |
| US4957649A (en) * | 1988-08-01 | 1990-09-18 | The Lubrizol Corporation | Lubricating oil compositions and concentrates |
| US4938881A (en) * | 1988-08-01 | 1990-07-03 | The Lubrizol Corporation | Lubricating oil compositions and concentrates |
| CA2086757C (en) * | 1990-07-31 | 2000-03-28 | Yasuhiko Yoneto | Synergystic blend of amine/amide and ester/alcohol friction modifying agents for improved fuel economy of an internal combustion engine |
| US5282990A (en) * | 1990-07-31 | 1994-02-01 | Exxon Chemical Patents Inc. | Synergistic blend of amine/amide and ester/alcohol friction modifying agents for improved fuel economy of an internal combustion engine |
| US6087308A (en) * | 1998-12-22 | 2000-07-11 | Exxon Research And Engineering Company | Non-sludging, high temperature resistant food compatible lubricant for food processing machinery |
| US6090761A (en) * | 1998-12-22 | 2000-07-18 | Exxon Research And Engineering Company | Non-sludging, high temperature resistant food compatible lubricant for food processing machinery |
| JP5127102B2 (en) * | 2001-09-06 | 2013-01-23 | Ｊｘ日鉱日石エネルギー株式会社 | Lubricating oil composition for internal combustion engines |
| US20050070450A1 (en) * | 2003-09-30 | 2005-03-31 | Roby Stephen H. | Engine oil compositions |
| JP2007131792A (en) * | 2005-11-11 | 2007-05-31 | Cosmo Sekiyu Lubricants Kk | Engine oil composition |
| US9909079B2 (en) | 2013-10-18 | 2018-03-06 | Chevron Oronite Company Llc | Lubricating oil composition for protection of silver bearings in medium speed diesel engines |
| JP7777396B2 (en) * | 2021-03-18 | 2025-11-28 | 株式会社Adeka | Glycerin fatty acid ester composition and lubricating oil composition or fuel oil composition containing the glycerin fatty acid ester composition |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2527889A (en) * | 1946-08-19 | 1950-10-31 | Union Oil Co | Diesel engine fuel |
| FR1303182A (en) * | 1960-06-15 | 1962-09-07 | Shell Int Research | Lubricating compositions containing novel phosphonates and preparation of these phosphonates |
| GB1059442A (en) * | 1963-03-13 | 1967-02-22 | Mobil Oil Company Ltd | Textile lubricant |
| FR1516811A (en) * | 1965-11-18 | 1968-02-05 | Shell Int Research | Break-in fluid |
| US3542678A (en) * | 1968-03-13 | 1970-11-24 | Lubrizol Corp | Lubricant and fuel compositions containing esters |
| BE781637A (en) * | 1972-04-04 | 1972-07-31 | Labofina Sa | LUBRICATING COMPOSITIONS FOR ROTARY ENGINES. |
-
1979
- 1979-11-22 CA CA000340371A patent/CA1157846A/en not_active Expired
- 1979-12-11 FR FR7930354A patent/FR2444706B1/en not_active Expired
- 1979-12-12 DE DE19792949910 patent/DE2949910A1/en not_active Ceased
- 1979-12-17 JP JP16396079A patent/JPS5584394A/en active Pending
- 1979-12-18 GB GB7943462A patent/GB2038356B/en not_active Expired
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4617026A (en) * | 1983-03-28 | 1986-10-14 | Exxon Research And Engineering Company | Method for improving the fuel economy of an internal combustion engine using fuel having hydroxyl-containing ester additive |
| US4957651A (en) * | 1988-01-15 | 1990-09-18 | The Lubrizol Corporation | Mixtures of partial fatty acid esters of polyhydric alcohols and sulfurized compositions, and use as lubricant additives |
| US5244591A (en) * | 1992-03-23 | 1993-09-14 | Chevron Research And Technology Company | Lubricating oil compositions for internal combustion engines having silver bearing parts |
| EP0573231A1 (en) * | 1992-06-02 | 1993-12-08 | The Lubrizol Corporation | Triglycerides as friction modifiers in engine oil for improved fuel economy |
| US6074995A (en) * | 1992-06-02 | 2000-06-13 | The Lubrizol Corporation | Triglycerides as friction modifiers in engine oil for improved fuel economy |
| EP0787790A3 (en) * | 1996-01-31 | 1998-07-15 | Chevron Chemical Company | Lubricant composition suitable for direct fuel injected, crankcase-scavenged two-stroke cycle engines |
| US5866520A (en) * | 1996-01-31 | 1999-02-02 | Chevron Chemical Company | Lubricant composition suitable for direct fuel injected, crankcase-scavenged two-stroke cycle engines |
| WO2007001443A3 (en) * | 2004-11-04 | 2007-03-22 | Pratt & Whitney | Lubricant additive packages for improving load-carrying capacity and surface fatigue life |
| WO2007001444A3 (en) * | 2004-11-04 | 2007-03-22 | Pratt & Whitney | Multifunctional lubricant additive package for a rough mechanical component surface |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2038356B (en) | 1983-05-11 |
| FR2444706A1 (en) | 1980-07-18 |
| FR2444706B1 (en) | 1985-07-19 |
| CA1157846A (en) | 1983-11-29 |
| DE2949910A1 (en) | 1980-07-03 |
| JPS5584394A (en) | 1980-06-25 |
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| PCNP | Patent ceased through non-payment of renewal fee |